Dealing with Contempt and Social Comparison

I have been experiencing greater calm lately, yet at some moments I seem to judge others, as in public places or in general. I understand this as contempt, though I don't really believe it; I don't *believe* I am better or that people are worthy of contempt, but the thoughts arise anyways and I try to just observe them with equanimity. Often, I experience quite a few of these thoughts, and this impedes my calmness. What is the best manner to deal with contempt, or just comparing oneself with others in general? 1. Does metta help, and what kind? 2. Should I watch the thoughts with equanimity or alter them? 3. Is there some other meditative technique that would help? Thank you